Deoxy sugars systematic names

Several deoxy sugars have trivial names established by long usage, e.g. fucose (Fuc), quinovose (Qui) and rhamnose (Rha). They are illustrated here in the pyranose form. These names are retained for the unmodified sugars, but systematic names are usually preferred for the formation of names of derivatives, especially where deoxygenation is at a chiral centre of the parent sugar. (See also the alphabetical listing of trivial names in the Appendix.)... 

As with ketoses, many deoxy sugars are incorrectly named. In so-called 2-deoxy-D-ribose, there are only two chiral carbon atoms and the sugar is related to D-erythrose. The systematic name is 2-deoxy-o-erythro-pentose. 

Deoxy prefixes with a frontal locant are considered as detachable, therefore ordered alphabetically and used indiscriminately both for trivially and for systematically named sugars. In assigning the pertinent configurational descriptors, interposed CH2 (and also CO) groups are again disregarded. 

Amino-sugars are systematically named as amino derivatives of the corresponding deoxy-sugars where an amino group replaces a hydroxy group, also with respect to configuration. In the case of substitution at position 2 mostly the trivial... osamine names are preferred, e.g. ... 

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